public async Task LimitsCountToMaxChildrenCountAllowedPlusOneForMoreAsync()
{
const int maxChildren = 2;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(5));
Assert.That(await rangedEntity.CountChildrenAsync(), Is.EqualTo(maxChildren + 1));
}
public async Task DelegatesChildrenCountingToWrappedEntityAsync()
{
const int maxChildren = 100;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(5));
Assert.That(await rangedEntity.CountChildrenAsync(), Is.EqualTo(5));
}
public async Task SetChildrenLimitForWrappedEntityBeforeCountAsync()
{
const int maxChildren = 100;
var entity = TestNatvisEntity.Create();
var rangedEntity = RangedNatvisEntityDecorator.First(maxChildren, entity);
Assert.That(entity.ChildrenLimit, Is.EqualTo(0));
await rangedEntity.CountChildrenAsync();
Assert.That(entity.ChildrenLimit, Is.EqualTo(maxChildren + 1));
}
public async Task ReturnsEmptyListIfRequestedRangeIsNotPresentAsync()
{
const int maxChildren = 2;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(10));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(7, 2);
Assert.That(children.Count, Is.EqualTo(0));
}
public async Task DelegatesGettingChildrenToWrappedEntityAsync()
{
const int maxChildren = 100;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(10));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(0, 2);
Assert.That(children.Count, Is.EqualTo(2));
Assert.That(await children[0].ValueAsync(), Is.EqualTo("0"));
Assert.That(await children[1].ValueAsync(), Is.EqualTo("1"));
}
public async Task ReturnsAllChildrenIfLessThanMaxIfRequestedMoreAsync()
{
const int maxChildren = 100;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(2));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(0, 5);
Assert.That(children.Count, Is.EqualTo(2));
Assert.That(await children[0].ValueAsync(), Is.EqualTo("0"));
Assert.That(await children[1].ValueAsync(), Is.EqualTo("1"));
}
public async Task DoesNotAddMoreElementIfAllElementsFitAsync()
{
const int maxChildren = 2;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(2));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(0, 2);
Assert.That(children.Count, Is.EqualTo(2));
Assert.That(await children[0].ValueAsync(), Is.EqualTo("0"));
Assert.That(await children[1].ValueAsync(), Is.EqualTo("1"));
}
public async Task AddsMoreElementIfItIsInRangeWhenOnlyUpperPartRequestedAsync()
{
const int maxChildren = 5;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(10));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(4, 2);
Assert.That(children.Count, Is.EqualTo(2));
Assert.That(await children[0].ValueAsync(), Is.EqualTo("4"));
Assert.That(children[1].DisplayName, Is.EqualTo("[More]"));
}
public async Task DelegatesIsValidToWrappedEntityAsync()
{
const int maxChildren = 100;
var validRangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().Valid(true));
var invalidRangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().Valid(false));
Assert.That(await validRangedEntity.IsValidAsync(), Is.True);
Assert.That(await invalidRangedEntity.IsValidAsync(), Is.False);
}
public async Task ReturnsMaxChildrenAllowedIfRequestedMoreAsync()
{
const int maxChildren = 2;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(10));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(0, 5);
Assert.That(children.Count, Is.EqualTo(3));
Assert.That(await children[0].ValueAsync(), Is.EqualTo("0"));
Assert.That(await children[1].ValueAsync(), Is.EqualTo("1"));
Assert.That(children[2].DisplayName, Is.EqualTo("[More]"));
}
public async Task ReturnsMoreThatStartsFromTheNextItemAsync()
{
const int maxChildren = 2;
var rangedEntity =
RangedNatvisEntityDecorator.First(maxChildren,
TestNatvisEntity.Create().WithCount(10));
IList <IVariableInformation> children = await rangedEntity.GetChildrenAsync(0, 3);
var moreAdapter = children[2].GetChildAdapter();
Assert.That(await moreAdapter.CountChildrenAsync(), Is.EqualTo(3));
IList <IVariableInformation> moreChildren = await moreAdapter.GetChildrenAsync(0, 3);
Assert.That(await moreChildren[0].ValueAsync(), Is.EqualTo("2"));
Assert.That(await moreChildren[1].ValueAsync(), Is.EqualTo("3"));
Assert.That(moreChildren[2].DisplayName, Is.EqualTo("[More]"));
}